MS Egerton 88 is a late sixteenth-century Irish manuscript, now housed in the British Library Egerton Collection, London. It is the work of members of the O'Davorens (Irish: Ó Duibhdábhoireann), a distinguished family of lawyers in Corcomroe, Co. Clare, and was compiled between 1564 and 1569 under the supervision of Domhnall Ó Duibhdábhoireann.